Home / 126,179,989.65-189,285,098.00-38,730,053.61

Finding the Fourth Proportional to 126,179,989.65, 189,285,098.00 and 38,730,053.61

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Solution

The fourth proportional to 126,179,989.65, 189,285,098.00 and 38,730,053.61 is: 58,099,719.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,179,989.65 : 189,285,098.00 = 38,730,053.61 : x
  2. Step 2: Convert to fraction form
    126,179,989.65/189,285,098.00 = 38,730,053.61/x
  3. Step 3: Cross multiply
    126,179,989.65x = 189,285,098.00 × 38,730,053.61
  4. Step 4: Simplify right side
    126,179,989.65x = 7,331,021,992,920,454
  5. Step 5: Solve for x
    x = 7,331,021,992,920,454/126,179,989.65
  6. Step 6: Final answer
    x = 58,099,719.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.